The Uni-Ball Signo 307 gel rollerball pen is the latest addition to their family of Signo gel ink pens. It has a brand new ink formula and tip that gives an even smoother writing experience than previous versions of Uni-Ball Signo pens. This is a retractable pen with a black rubber grip and a raised ridge pattern to ensure that you have maximum comfort and control while writing. It is a very cool looking pen with a black barrel that starts off in a translucent black and transposes into a carbon fibre effect & is set off with a pocket clip that matches the pens ink colour. The Uni-Ball Signo 307 gel pen has a 0.7mm tip that writes a 0.4mm wide line and a choice of black blue or red ink. This ink is the latest formula of Uni-Ball's renowned 'Uni Super ink' which is quick drying, waterproof, fade resistant and with the ability to withstand solvents used by cheque and document fraudsters as your signature cannot be removed from documents.Continue Reading